Airtac SAUJ100 Adjustable Cylinder SAUJ100X800-20S
The AirTAC Airtac SAUJ100 Adjustable Cylinder SAUJ100X800-20S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 800mm stroke, 1/2" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
- BoreØ100 mm
- Stroke800 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAUJ100 Adjustable Cylinder SAUJ100X800-20S
The AirTAC SAUJ100X800-20S is a double-acting single-rod profile cylinder with an on-site adjustable extend stroke. An external stop screw lets you shorten the 800 mm nominal stroke by up to 20 mm, yielding a usable 780-800 mm window without buying a new actuator. It features a hard-anodized extruded aluminum barrel, making it shorter than an ISO 15552 cylinder of the same 100 mm bore. The 1/2" port and M20x1.5 rod thread handle heavy loads.
This bore delivers substantial force: 3927 N push and 3681 N pull at 0.5 MPa, scaling to 7068 N at 0.9 MPa. A practical computed insight sets the safe working load around 2356 N (60% of the 0.5 MPa push), translating to a 200 kg vertical lift with a 2:1 margin. The -S suffix means a built-in magnet supports CMSG, DMSG, or EMSG sensors. Adjustable 29 mm cushions decelerate the payload, but do not lock it.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X800-20S Technical Specifications
| Model | Airtac SAUJ100 Adjustable Cylinder SAUJ100X800-20S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAUJ100 Adjustable Cylinder SAUJ100X800-20S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×800 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
Where the Airtac SAUJ100 Adjustable Cylinder SAUJ100X800-20S Is Used
Heavy Press Fit Tuning
Final press depth varies by material batch; the 20 mm stop screw lets operators dial in the exact 780-800 mm extend position on-site without remachining stops.
Large Pallet Positioning
Pushing heavy pallets requires the 3927 N thrust at 0.5 MPa. The adjustable end position accommodates slight pallet height variances on the fly.
Long Transfer Diverter
Diverting products across an 800 mm gap demands precise stopping. The external screw adjusts the extend limit to match new product sizes quickly.
Is the Airtac SAUJ100 Adjustable Cylinder SAUJ100X800-20S the Right Cylinder?
Size this 100 mm bore against its neighbors: a 63 mm bore yields 1559 N push at 0.5 MPa, while an 80 mm bore gives 2513 N. Choose the SAUJ100X800-20S when your machine needs 3927 N thrust plus field tuning. It beats a fixed SAU with an external stop by integrating the adjustment cleanly into the profile body. The 20 mm adjust window is ideal for final positioning tweaks. Mounting options include Basic, FA flange, and LB foot, sharing compatibility with the AirTAC SC series. The -S magnet enables electronic or reed sensing. Because the stroke is 800 mm, add external guides to prevent rod bending and manage side loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB — same as SC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAUJ100 Adjustable Cylinder SAUJ100X800-20S FAQ
It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N at 0.7 MPa, and 7068 N at 0.9 MPa. The theoretical max is 801 kgf at 1.0 MPa. The 800 mm extend stroke can be shortened by up to 20 mm via an external stop screw, giving a 780-800 mm working window. The 1/2" port and 29 mm cushions manage heavy dynamics.
The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG sensors. Regarding load holding: the cylinder does NOT hold its load on air loss. The piston drifts if air is removed, and the adjustable cushion only decelerates near the end of stroke—it is never a lock. For secure load holding, install an external rod lock or pilot-operated check valve.
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